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CVE-2024-47712

8.3 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix potential RCU dereference issue in wilc_parse_join_bss_param In the `wilc_parse_join_bss_param` function, t…

Published Oct 21, 2024CWE-476EPSS 0.36%

Overview

CVE-2024-47712 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 8.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

wifi: wilc1000: fix potential RCU dereference issue in wilc_parse_join_bss_param

In the `wilc_parse_join_bss_param` function, the TSF field of the `ies`

structure is accessed after the RCU read-side critical section is

unlocked. According to RCU usage rules, this is illegal. Reusing this

pointer can lead to unpredictable behavior, including accessing memory

that has been updated or causing use-after-free issues.

This possible bug was identified using a static analysis tool developed

by myself, specifically designed to detect RCU-related issues.

To address this, the TSF value is now stored in a local variable

`ies_tsf` before the RCU lock is released. The `param->tsf_lo` field is

then assigned using this local variable, ensuring that the TSF value is

safely accessed.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5Refgit.kernel.org/stable/c/557418e1704605a81c9e26732449f71b1d40ba1eRefgit.kernel.org/stable/c/5a24cedc243ace5ed7c1016f52a7bfc8f5b07815Refgit.kernel.org/stable/c/6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8Refgit.kernel.org/stable/c/79510414a7626317f13cc9073244ab7a8deb3192Refgit.kernel.org/stable/c/84398204c5df5aaf89453056cf0647cda9664d2bRefgit.kernel.org/stable/c/b040b71d99ee5e17bb7a743dc01cbfcae8908ce1Refgit.kernel.org/stable/c/bf090f4fe935294361eabd9dc5a949fdd77d3d1bReflists.debian.org/debian-lts-announce/2025/01/msg00001.htmlReflists.debian.org/debian-lts-announce/2025/03/msg00002.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-47712?

CVE-2024-47712 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 8.3 (HIGH).

How severe is CVE-2024-47712?

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-47712?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-47712?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-47712 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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